Home / 51,163.76-76,756.12-21,581.68

Finding the Fourth Proportional to 51,163.76, 76,756.12 and 21,581.68

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Solution

The fourth proportional to 51,163.76, 76,756.12 and 21,581.68 is: 32,376.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,163.76 : 76,756.12 = 21,581.68 : x
  2. Step 2: Convert to fraction form
    51,163.76/76,756.12 = 21,581.68/x
  3. Step 3: Cross multiply
    51,163.76x = 76,756.12 × 21,581.68
  4. Step 4: Simplify right side
    51,163.76x = 1,656,526,019.88
  5. Step 5: Solve for x
    x = 1,656,526,019.88/51,163.76
  6. Step 6: Final answer
    x = 32,376.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.